linux-kernel - Re: [PATCH] fs: replace int param with size_t for seq_open

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Message-ID: <CACVxJT_nkS9evtCd5x6GH3Fiyg+hO+bJCzvz3pgdxsUj+fwQVw@mail.gmail.com>
Date:	Mon, 1 Sep 2014 17:13:58 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Rob Jones <rob.jones@...ethink.co.uk>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fs: replace int param with size_t for seq_open_private()

On Mon, Sep 1, 2014 at 4:54 PM, Rob Jones <rob.jones@...ethink.co.uk> wrote:
>
>
> On 01/09/14 14:43, Alexey Dobriyan wrote:
>>>
>>>   void *__seq_open_private(struct file *f, const struct seq_operations
>>> *ops,
>>> - int psize)
>>> + size_t psize)
>>
>>
>> It should be "unsigned int" at most.
>> As almost all in-kernel lengths.

> I don't agree. Ultimately this parameter ends up as a parameter to
> kmalloc where it is expected to be a size_t.

Which is a mistake too because allocations are never that large.

Save REX prefix, keep length unsigned int!

   Alexey
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